package goover.unit02;

import java.util.Properties;

public class SystemDemo01 {
    public static void main(String[] args){
        System.out.println(System.currentTimeMillis());
        Properties properties = System.getProperties();
        System.out.println(properties);
        int[] src = {2,4,7,8,9,4,3,9};
        int[] desc = {4,7,9,3,4,6,8};
        System.arraycopy(src,0,desc,0,desc.length);
        for(int i = 0;i < desc.length; i++){
            System.out.println(desc[i]);
        }
    }
}
